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Experimental Research of High-Phosphorus Pig Iron Dephosphorization

Yang Shuang-pin

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Abstract

With CaO-Fe2O3-CaF2system slag as dephosphorization,the influencing factors of such for ratio,temperature,addition rate,basicity of slag was studied in laboratory GSL for dephosphorization.As a result,when the w(CaO)/w(Fe2O3)=2.5,the basicity is 2.5,the flux were added in an amount of 12%and addition some flux rate, so that the phosphorus content decreased to 0.47%in temperate conditions of 1 450℃.Finally,the best ratio was derived dephosphorization by adjusting the amount of flux.

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What this paper is about

With CaO-Fe2O3-CaF2system slag as dephosphorization,the influencing factors of such for ratio,temperature,addition rate,basicity of slag was studied in laboratory GSL for dephosphorization.As a result,when the w(CaO)/w(Fe2O3)=2.5,the basicity is 2.5,the flux were added in an amount of 12%and addition some flux rate, so that the phosphorus content decreased to 0.47%in temperate conditions of 1 450℃.Finally,the best ratio was derived dephosphorization by adjusting the amount of flux.

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Available abstract

With CaO-Fe2O3-CaF2system slag as dephosphorization,the influencing factors of such for ratio,temperature,addition rate,basicity of slag was studied in laboratory GSL for dephosphorization.As a result,when the w(CaO)/w(Fe2O3)=2.5,the basicity is 2.5,the flux were added in an amount of 12%and addition some flux rate, so that the phosphorus content decreased to 0.47%in temperate conditions of 1 450℃.Finally,the best ratio was derived dephosphorization by adjusting the amount of flux.

Key concepts: Phosphorus, Slag (welding), Flux (metallurgy), Chemistry, Metallurgy, Inorganic chemistry, Pig iron, Environmental chemistry

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